Critical Authentication

CVE-2026-47865 — VMware Avi Load Balancer Authentication Bypass Vulnerability

VMware Avi Load Balancer contains an authentication bypass vulnerability. A malicious user with network access may be able to access the Avi Control plane by bypassing the authentication mechanism. Affected versions: 31.1.1 through 31.2.2 (fixed in 31.2.2-2p3) 30.1.1 through 30.2.6 (fixed in 30.2.7) 22.1.1 through 22.1.7 (fixed in 30.2.7)

Published Jul 18, 2026 · Updated Oct 15, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: vmware

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

Technical severity (critical)+10
Automatable exploitation (SSVC)+3

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

—

No EPSS score.

Affects

Broadcom

Vmware Avi Load Balancer and 1 more

CVSS base

9.8

Critical · 2 source(s)

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation

None

none · proof-of-concept · active

Automatable

Yes

can an attacker script the kill-chain steps

Technical impact

Total

partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Broadcom Vmware Avi Load Balancer, Vmware Avi Load Balancer).
The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes matching the vulnerability class (authentication), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Broadcom	Vmware Avi Load Balancer	≥ 30.1.1 and < 30.2.7version 32.1.1version 31.2.2-2p2version 31.2.2-2p1version 31.2.2version 22.1.7-2p9version 22.1.7-2p8version 22.1.7-2p7 and 10 more version 22.1.7-2p6version 22.1.7-2p5version 22.1.7-2p4version 22.1.7-2p3version 22.1.7-2p2version 22.1.7-2p11version 22.1.7-2p10version 22.1.7≥ 31.1.1 and < 31.2.2≥ 22.1.1 and < 22.1.7	Vulnerable	NIST National Vulnerability Database
Vmware	Avi Load Balancer	≥ 31.1.1 and ≤ 31.2.2≥ 30.1.1 and ≤ 30.2.6≥ 22.1.1 and ≤ 22.1.7	Vulnerable	CVE Program (cve.org) e CISA ADP

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Network

Attack complexity

Low

Privileges required

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
9.8	CVSS 3.1	Critical	3.9	5.9	security@vmware.com via NIST National Vulnerability Database
9.8	CVSS 3.1	Critical	—	—	vmware via CVE Program (cve.org) e CISA ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (score shown at the top: security@vmware.com)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-287 · Improper Authentication

Other CVEs with this weakness →

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
Review authentication logs: logins without MFA, anomalous sessions and recently created accounts.

web/proxy/WAF logsnetwork IDS/IPSauthentication logs

Timeline

What happened to this CVE, newest first.

2026
Affected products added · vmware/avi load balancer
Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
SSVC assessment updated
Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 15, 2026
CVSS changed · 9.8
Oct 15, 2026 · NIST National Vulnerability Database
Source status changed · → Analyzed
Oct 15, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 15, 2026 · NIST National Vulnerability Database
CVE published
Jul 18, 2026 · vmware

Source activity

Repeated readings are counted rather than listed.

1× Official description updated · Oct 15, 2026 – Oct 15, 2026

References

1 on the record

support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvis
Vendor Advisory, NIST National Vulnerability Database

Elsewhere on this site

Broadcom
every CVE for this vendor

Authentication
same class

CWE-287
other pages naming this weakness

Related CVEs (same products)

High CVE-2026-47866 VMware Avi Load Balancer Authorization Bypass Vulnerability Jul 18, 2026
High CVE-2026-47867 VMware Avi Load Balancer Remote Code Execution Vulnerability Jul 18, 2026
High CVE-2026-47868 VMware Avi Load Balancer Local Privilege Escalation Vulnerability Jul 18, 2026
High CVE-2026-47869 VMware Avi Load Balancer Remote Code Execution Vulnerability Jul 18, 2026
High CVE-2026-47870 VMware Avi Load Balancer Privilege Escalation Vulnerability Jul 18, 2026
High CVE-2026-47871 VMware Avi Load Balancer Directory Traversal Vulnerability Jul 18, 2026

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No FIRST EPSS score.
No fixed version, patch or mitigation documented.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-47865 is "VMware Avi Load Balancer Authentication Bypass Vulnerability", rated Critical. It affects Vmware Avi Load Balancer (Broadcom); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 9.8 describes technical severity. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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